Firebase Phone Auth
First you will need to end able phone in firebase authentication.
Meetup now allows password reset via Firebase phone auth.
For user to reset account password on the app, user will be asked to enter their account phone number, then an OTP is send to the phone number.
User will be required to enter the phone number for verification before they can set new password for the account.
NOTE: For iOS Firebase Phone auth to work, you will need to make some changes to iOS Info.plist file.